The Erie Canal opens, the Pony Express closes, Wyatt Earp shoots it out in Tombstone, "Baby Fae" gets a baboon heart, and the Patriot Act is signed into law, all on this day.
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Library of Congress
1854: Charles William Post, the breakfast cereal and foods manufacturer who invented Grape Nuts, Postum and Post Toasties, is born in Springfield, Ill.